Aug 22, 2022 20:00:00

Reported that the cause of Wi-Fi delays occurring only when using specific software was in an unexpected place

Andrew Gutekantst, an IT specialist, wrote a blog post about how to solve the problem of significant Wi-Fi delays only when using specific software such as call software and online games. rice field.

Resolving an unusual wifi issue • Ando's thoughts

https://blog.ando.fyi/posts/diagnosing-an-unsual-wifi-issue/

From one day, Mr. Gutkanst's desktop PC experienced an intermittent connection failure, and a random delay of 2000 ms or more occurred every few seconds. Mr. Gutekanst thought it was strange, but at that time he had just moved to a place about 700 km away, so it was difficult to narrow down the factors, and he did not immediately respond.

While still suffering from delays, Mr. Gutekanst noticed that the delay only started when his desktop PC was connected to Wi-Fi, and the same problem occurred when building a new PC. was. Mr. Gutkanst, who originally thought that the motherboard connecting the wireless LAN adapter was the cause, seems to have no idea what caused the delay even with the new PC. Also, there was no delay in the browser, and strange behavior was caused, such as delays only when using specific apps such as the chat tool Skype and the paint tool MediBang Paint Pro.

So when Mr. Gutekanst examined the process of MediBang Paint Pro, it was discovered that there was a problem with the network manager built into the application framework

Qt . I searched on Google and finally found a bug report . This issue has been resolved at the time of writing the article. ``Who could have predicted that Qt was the cause? I wanted to know eight months ago (when the problem occurred),'' Gutekantst said.